Growth-promoting and stress-resistant water-soluble fertilizer for improving yield and quality of protected-culture tomatoes and preparation method therefor

Abstract

A growth-promoting and stress-resistant water-soluble fertilizer for improving yield and quality of protected-culture tomatoes and a preparation method thereof are provided. The growth-promoting and stress-resistant water-soluble fertilizer includes the following components in parts by weight: 20-30 parts of soluble humate, 35-40 parts of urea, 3-6 parts of potassium dihydrogen phosphate, 48-55 parts of potassium sulfate, 1.5-2.5 parts of zinc sulfate, 1.8-2.2 parts of magnesium sulfate, 1.8-2.2 parts of calcium chloride, 0.1-0.2 parts of boric acid, 0.5-0.7 parts of ammonium molybdate, 0.4-0.6 parts of ferrous sulfate, 13-18 parts of EDTA, and 5-8 parts of polyaspartic acid. The growth-promoting and stress-resistant water-soluble fertilizer can meet demand of tomatoes for macro-elements and medium-to-microelements during a growth stage, help raise soil temperature, and improve the yield and quality of the protected-culture tomatoes in northern regions during winter when used in combination with chitosan cross-linked humic acid.

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